StorageManager

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The StorageManager interface of the Storage API provides an interface for managing persistance permissions and estimating available storage. You can get a reference to this interface using either navigator.storage or WorkerNavigator.storage.

Methods

StorageManager.estimate() Secure context: Returns a Promise that resolves to a StorageEstimate object containing usage and quota numbers for your origin.
StorageManager.persist() Secure context: Returns a Promise that resolves to true if the user agent is able to persist your site's storage.
StorageManager.persisted() Secure context: Returns a Promise that resolves to true if persistence has already been granted for your site's storage.

Specifications

Specification
Storage Standard (Storage) # storagemanager

Browser compatibility

BCD tables only load in the browser